Sink



FIG. 1 is a right, top, front perspective view of a sink embodying my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear elevational view thereof being a mirror image of the front elevational image shown;

FIG. 4 is a right side elevational view thereof, the left side elevational view thereof being a mirror image of the right shown;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a cross-sectional view thereof taken along line 6—6 of FIG. 2; and,

FIG. 7 is a cross-sectional view thereof taken along line 7—7 of FIG. 2. 

The ornamental design for a sink, as shown and described. 